I believe the AI compares the attack values when deciding to charge, and uses the bugged value (missile value) to do it. Aside from the bug itself, there is not much wrong with this
Not exactly like that. I did some tests with opposite armies completely the same and AI armies that have better/worse missile troops. In all the cases the missile units passed their heavy infantry comrades (you know the ones who should take the brunt of the attack) try to charge my line, got shot and flee before they reached my units.

I changed some stats to see wether it helped and but I can't fix the AI behaviour. It is badly coded and I doubt that it will be fixed.
I find it completely unfair of you to make judgements against CA BEFORE the freakin patch is even available for evaluation! Can't you wait to complain until you actually have complaint content?
I have every right to complain if I buy a product that doesn't live up to expectations and promises.